Table 2 Median (range) lung volumes and doses on expiration and inspiration computed tomography.

From: Deep inspiration breath hold real-time tumor-tracking radiation therapy (DBRT) as a novel stereotactic body radiation therapy approach for lung tumors

 

Expiration (range)

Inspiration (range)

Mean rate of change, % (± SD)

p value

Volume, mL

2872.2 (1644.9–5318.8)

4514.3 (2833.5–6647.5)

58.8 (± 22.6)

0.003

Mean dose, Gy

1.44 (1.25–5.62)

1.41 (1.09–4.63)

− 14.0 (± 12.0)

0.003

V20, %

1.49 (0.74–6.29)

1.01 (0.62–4.12)

− 27.6 (± 13.9)

0.003

V10, %

3.92 (2.31–17.51)

3.23 (2.05–13.25)

− 19.1 (± 12.2)

0.003

V5, %

7.94 (6.17–26.64)

8.10 (6.50–24.86)

− 9.5 (± 14.7)

0.074

  1. Vx, the volumes of the lung that received x Gy. SD, standard deviation.
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